Title :
Grating assisted SAW directional couplers
Author :
Golan, G. ; Charuvy, I. ; Zilberstein, M. ; Seidman, A. ; Croitoru, N.
Author_Institution :
Dept. of Phys. Electron., Tel Aviv Univ., Ramat Aviv, Israel
Abstract :
Physical properties of novel grating-assisted Y-directional couplers are examined using the coupled mode theory. A general formalism for the analysis of the lateral perturbed directional coupler properties is presented. Explicit expressions for waveguide key parameters, such as coupling length, grating period, and other structural characterizations, are obtained. The influence of other physical properties such as time and frequency response or cutoff conditions are also analyzed. A plane grating-assisted directional coupler is presented and examined as a basis component in the integrated acoustic technology
Keywords :
directional couplers; frequency response; surface acoustic wave devices; SAW directional couplers; Y-directional couplers; coupled mode theory; coupling length; cutoff conditions; frequency response; grating period; grating-assisted; structural characterizations; Acoustic devices; Acoustic waveguides; Acoustic waves; Directional couplers; Frequency; Gratings; Optical sensors; Optical surface waves; Optical waveguides; Surface acoustic waves;
Conference_Titel :
Frequency Control, 1991., Proceedings of the 45th Annual Symposium on
Conference_Location :
Los Angeles, CA
Print_ISBN :
0-87942-658-6
DOI :
10.1109/FREQ.1991.145909
